path: make notedeck install md path configurable

Important for deploys

README.md

@@ -12,6 +12,7 @@ The Damus API backend for Damus Purple and other functionality.
 
 - `DB_PATH`: Path to the folder where to save mdb files.
 - `TESTFLIGHT_URL`: URL for the TestFlight app (optional)
+- `NOTEDECK_INSTALL_MD`: URL for the notedeck installation instructions markdown
 
 #### Translations
 

src/index.js

@@ -10,7 +10,7 @@ const debug = require('debug')('api')
 const { PurpleInvoiceManager } = require('./invoicing')
 const { WebAuthManager } = require('./web_auth')
 
-const ENV_VARS = ["LN_NODE_ID", "LN_NODE_ADDRESS", "LN_RUNE", "LN_WS_PROXY", "DEEPL_KEY", "DB_PATH"]
+const ENV_VARS = ["LN_NODE_ID", "LN_NODE_ADDRESS", "LN_RUNE", "LN_WS_PROXY", "DEEPL_KEY", "DB_PATH", "NOTEDECK_INSTALL_MD"]
 
 function check_env() {
   const missing = []

src/router_config.js

@@ -454,7 +454,7 @@ function config_router(app) {
     }
     const account_info = get_account_info_payload(user_id, account, true)
     if(account_info.active == true) {
-      const installInstructionsPath = path.resolve('notedeck-install-instructions.md');
+      const installInstructionsPath = path.resolve(process.env.NOTEDECK_INSTALL_MD);
       try {
         const installInstructions = fs.readFileSync(installInstructionsPath, { encoding: 'utf8' });
         json_response(res, { value: installInstructions });